As shown in the figure, CeO2 nanoparticles whose size, distribution and loading content can be well controlled are assembled onto RGO sheets to form highly integrated nanocomposites via chemisorption and van der Waals interactions.

In the study, the team showed that the RGO/CeO2 nanocomposites can act as photocatalysts for degrading methylene blue under simulated sunlight irradiation. Incorporating RGO with CeO2 into nanocomposites appears to significantly enhance the photocatalytic activity of CeO2 nanoparticles thanks to the improved separation of electron-hole pairs and enhanced light adsorption.

These hybrid materials could find use in the fields of catalysis, sensing and power.

Full details can be found in the journal Nanotechnology.